includes/resourceloader/ResourceLoaderSkinModule.php

   1 <?php
   2 /**
   3  * ResourceLoader module for skin stylesheets.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @author Timo Tijhof
  22  */
  23
  24 class ResourceLoaderSkinModule extends ResourceLoaderFileModule {
  25
  26         /**
  27          * @param ResourceLoaderContext $context
  28          * @return array
  29          */
  30         public function getStyles( ResourceLoaderContext $context ) {
  31                 $logo = $this->getLogo( $this->getConfig() );
  32                 $styles = parent::getStyles( $context );
  33
  34                 $default = !is_array( $logo ) ? $logo : $logo['1x'];
  35                 $styles['all'][] = '.mw-wiki-logo { background-image: ' .
  36                                 CSSMin::buildUrlValue( $default ) .
  37                                 '; }';
  38
  39                 if ( is_array( $logo ) ) {
  40                         if ( isset( $logo['1.5x'] ) ) {
  41                                 $styles[
  42                                         '(-webkit-min-device-pixel-ratio: 1.5), ' .
  43                                         '(min--moz-device-pixel-ratio: 1.5), ' .
  44                                         '(min-resolution: 1.5dppx), ' .
  45                                         '(min-resolution: 144dpi)'
  46                                 ][] = '.mw-wiki-logo { background-image: ' .
  47                                 CSSMin::buildUrlValue( $logo['1.5x'] ) . ';' .
  48                                 'background-size: 135px auto; }';
  49                         }
  50                         if ( isset( $logo['2x'] ) ) {
  51                                 $styles[
  52                                         '(-webkit-min-device-pixel-ratio: 2), ' .
  53                                         '(min--moz-device-pixel-ratio: 2),' .
  54                                         '(min-resolution: 2dppx), ' .
  55                                         '(min-resolution: 192dpi)'
  56                                 ][] = '.mw-wiki-logo { background-image: ' .
  57                                 CSSMin::buildUrlValue( $logo['2x'] ) . ';' .
  58                                 'background-size: 135px auto; }';
  59                         }
  60                 }
  61
  62                 return $styles;
  63         }
  64
  65         /**
  66          * @param Config $conf
  67          * @return string|array Single url if no variants are defined
  68          *  or array of logo urls keyed by dppx in form "<float>x".
  69          *  Key "1x" is always defined.
  70          */
  71         public static function getLogo( Config $conf ) {
  72                 $logo = $conf->get( 'Logo' );
  73                 $logoHD = $conf->get( 'LogoHD' );
  74
  75                 $logo1Url = OutputPage::transformResourcePath( $conf, $logo );
  76
  77                 if ( !$logoHD ) {
  78                         return $logo1Url;
  79                 }
  80
  81                 $logoUrls = [
  82                         '1x' => $logo1Url,
  83                 ];
  84
  85                 // Only 1.5x and 2x are supported
  86                 if ( isset( $logoHD['1.5x'] ) ) {
  87                         $logoUrls['1.5x'] = OutputPage::transformResourcePath(
  88                                 $conf,
  89                                 $logoHD['1.5x']
  90                         );
  91                 }
  92                 if ( isset( $logoHD['2x'] ) ) {
  93                         $logoUrls['2x'] = OutputPage::transformResourcePath(
  94                                 $conf,
  95                                 $logoHD['2x']
  96                         );
  97                 }
  98
  99                 return $logoUrls;
 100         }
 101
 102         /**
 103          * @param ResourceLoaderContext $context
 104          * @return bool
 105          */
 106         public function isKnownEmpty( ResourceLoaderContext $context ) {
 107                 // Regardless of whether the files are specified, we always
 108                 // provide mw-wiki-logo styles.
 109                 return false;
 110         }
 111
 112         public function getDefinitionSummary( ResourceLoaderContext $context ) {
 113                 $summary = parent::getDefinitionSummary( $context );
 114                 $summary[] = [
 115                         'logo' => $this->getConfig()->get( 'Logo' ),
 116                         'logoHD' => $this->getConfig()->get( 'LogoHD' ),
 117                 ];
 118                 return $summary;
 119         }
 120 }